Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 10American Society of Mechanical Engineers, 1991 - Arctic regions |
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Page 359
... platform is used as a primary reference as it is considered a reliable benchmark . The Tor platform is used as a secondary benchmark . The Edda benchmark platform was seen to settle some 6 to 7 cm when the loading on the platform ...
... platform is used as a primary reference as it is considered a reliable benchmark . The Tor platform is used as a secondary benchmark . The Edda benchmark platform was seen to settle some 6 to 7 cm when the loading on the platform ...
Page 425
... platform can be considered infinitely stiff then eq . ( 2 ) fully defines the governing equations of the collision . However , in cases where the platform re- sponds dynamically to the collision force , the col- lision can only be ...
... platform can be considered infinitely stiff then eq . ( 2 ) fully defines the governing equations of the collision . However , in cases where the platform re- sponds dynamically to the collision force , the col- lision can only be ...
Page 426
... platform . The physical accelerations of the platform at dis- crete points can be determined by : 8 r n ï ̧ = ± • ̧Ÿ¡ ( t ) = • ÿ ( t ) i = 1 LAT ( 10 ) Im E m m6 18 17 These physical accelerations determine the d'Alem- bert forces ...
... platform . The physical accelerations of the platform at dis- crete points can be determined by : 8 r n ï ̧ = ± • ̧Ÿ¡ ( t ) = • ÿ ( t ) i = 1 LAT ( 10 ) Im E m m6 18 17 These physical accelerations determine the d'Alem- bert forces ...
Contents
CASE HISTORIES OFFSHORE STRUCTURES | 331 |
OFFSHORE TECHNOLOGY PART | 337 |
OFFSHORE STRUCTURE CONCEPTS | 361 |
Copyright | |
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acceleration accelerometers added mass amplitude axial beam behaviour bending stiffness cable calculated Campos Basin catenary coefficient compliant tower components curvature curves cylinder damping ratio deck deformation developed diameter displacement drag drag coefficient dynamic analysis dynamic response effect Ekofisk elastic Engineering equation finite element finite element method flexible pipe fluid force free-fall lifeboat frequency domain hydrodynamic hydrodynamic damping impact in-span installation jack jacket joint launch length lift force linear load Mathieu Mathieu equation measured Mechanics meters method mode mode shape motion natural frequency nodal nodes nonlinear obtained Offshore Structures OMAE operation oscillation parameters phase pile platform pressure rotation seabed semi-rigid shear shown in Figure skin friction soil solution SPUS static analysis stiffness matrix submarine subsea support point tension tether torque transverse values vector velocity vertical vessel vibration Volume I-B water depth